. Author manuscript; available in PMC: 2018 Sep 1.

Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2018 Mar;27(3):245–253. doi: 10.1158/1055-9965.EPI-17-0488

Table 1.

Model-based SAE summary statistics (%) for being current with CRC screening, overall, by county and by race/ethnicity and comparison with the mean (%) and 95% CI for BRFSS select race/ethnicity groups.

Test	No of counties	Mean	95% CI	Min	Lower quartile	Median	Upper quartile	Max	Inter-quartile range	Overall Range	BRFSS
											mean	95% CI
Any CRC test type
Overall
U.S.		67.28	66.83―67.71								66.24	65.83―66.65
Counties	3142	65.23		40.11	62.04	65.53	68.88	79.76	6.84	39.65
NH white
U.S.		69.16	68.77―69.55								68.33	67.92―68.73
counties	3142	66.29		45.96	63.17	66.41	69.72	80.41	6.54	34.45
NH black
U.S.		67.69	67.17―68.17								67.79	66.42―69.12
Counties	3065	64.07		33.09	60.64	64.87	68.32	80.79	7.68	47.70
NH AIAN^a
U.S.		57.81	57.19―58.41
Counties	3110	58.24		30.01	54.28	58.55	62.60	75.36	8.32	45.35
NH Asian
U.S.		61.99	60.88―63.00
Counties	3075	56.90		28.67	52.43	56.89	61.03	75.43	8.60	47.76
NH other^b
U.S.		63.12	62.44―63.76
Counties	3127	60.27		34.29	57.02	60.71	64.08	75.22	7.06	40.96
Hispanic
U.S.		56.81	55.82―57.71								50.82	48.79―52.85
Counties	3134	53.34		25.05	49.76	53.53	57.22	71.00	7.45	45.95

Colonoscopy
Overall
U.S.		63.69	63.20―64.16								62.48	62.06―62.90
Counties	3142	62.01		35.36	58.65	62.23	65.76	76.73	7.11	41.36
FOBT
Overall
U.S.		9.67	9.43―9.90								9.86	9.59―10.14
Counties	3142	8.47		3.28	7.29	8.19	9.34	20.54	2.05	17.26

Notes: CRC, colorectal cancer; SAE, small area estimates

Any CRC test type =Home fecal occult blood test (FOBT) within the past year; sigmoidoscopy within 5 years with FOBT within 3 years; or colonoscopy within 10 years

We used a modified Monte Carlo simulation method for estimating the model-based predicted standard errors.

AIAN = American Indian/Alaska Native.

NH other = Pacific Islander (PI), other one race, and 2 or more races.

An additional analysis comparing mean estimates of counties with ≥500 respondents shows that the mean abs difference between the model-based estimates and the BRFSS direct estimates for being current with any CRC test type is 2.3, SE=0.127 and interquartile range=2.43.